/*
 * Copyright (C) 2012 David Bordoley
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package restlib.server;

import com.google.common.util.concurrent.ListenableFuture;

import restlib.Request;
import restlib.Response;
import restlib.data.ChallengeMessage;

public interface Authorizer {    
    public ChallengeMessage authenticationChallenge();

    public ListenableFuture<Response> authenticate(final Request request);
    
    public abstract String scheme();
}
